Improvement in book-holders



dinard Saute @anni mijn.

Letters Patent No. 96,702, datld November 9, 1869.

IMPROVEMENT IN .BOGK-HOLDERS.

The Schedule referred to in these Letters Patent and. making part of the same.

To all whom it lmay concern Be it known that I, G. P. JOHNSON, of Webstcrs' som'i, have invented a new and valuable Improvement' in Book-Holders; and .I do hereby declare that the following is a full, clear, and exact description of the construction and operation of the same, reference being had to the annexed drawings, making a part of this specification, and to the let-ters and figures of reference marked thereon.

Figure 1, of the drawings, is a side view of my bookholder;

Figure 2 is a sectional view of the book-holder propel', showing the means by which it is attached to the arm;

Figure 3 is a front view of the book-holder proper; and

Figure 4 is a top v iewof the same.

My invention relates to means for holding books while being read or copied and It consists mainly in a novel arrangement of devices intended to serve as an eicient bookholder for the clerk,`the student, and the invalid.

A, ofthe drawings, represents a vertical rod, to the lower end of which is attached the clamp and thumbscrew B.

C represents a leaf of a table, or arm of a chair, to`

icie'nt play-room for moving the same up and 'down upon said Standard at will.

The letter e represent-s a vertical' bar placed between the' left-hand ends of arm D and brace c, and pivoted thereto respectively. v

F is a set-screw, that passcs through the har e, and

` has a point resting against the standard-A, in the manner shown on g. 1.

These last-mentioned devices render the arm D adjustable at any point upon standard A the operator may desire.A

The right-hand section of arm D is bent upward,

as shown, and is connected with the upright or rear part ot' the book-holder proper, by means of the thumbscrew h.

My book-holder proper is constructed of one metallic plate, turned at right angles, in the form shown on iig. 2, and having flanges turned forward at its respective ends, so as to form side rests or supports for the book.

, In the' bottom portion of this plate, I make slots, as shown at s, and arrange therein the guide-bar next lnentioned.

H represents the guide-bar. It is a thin plate of' metal, of sui'licent length to occupy the space between the flanges of the bookholder plate, and has two arms, fa, that are passed through the out-side slots s, in which they are held respectively by thc crossheads u.

K represents au elliptic spring, arranged under the guide-bar, in the manner shown on fig. 3.

P represents a handle. It is constructed in tho form of a vertical rod, the upper end of which passes through the spring K, and is pivoted to the guide-bar, while the lower end has a cross-head, as shown.

By this arrangement, in combination with the guidebar and spring K, the operator is enabled to clamp the lower end of a book in the holder with sufficient force to keep it securely in place.`

I claim-4 In combination with the book-holder proper herein dcscribed,. the arrangement of the jointed arm 1), brace c, bar e, spring d, and setscrew F, as and for the purpose specified.

Also, the ariangement, herein shown and described, v

of the't-humb-screw h, the book-holder proper, the guide-bar H, the spring K, and handle I?, as and for the purposes sct forth.

In testimony that I claim the above, I have hereunto subscribed my name, in the presence of' two wit nesses. G. I. JOHNSON.

Witnesses:

E. R.l MASON, 'l. M. GRANT. 

